Coffee Knowledge
Latest articles, industry insights and brewing guides
The 5 Main Types of Coffee Beans Explained
Discover the five main coffee species, with a focus on the dominant Arabica and hardy Robusta, their flavors, growing altitudes, and caffeine levels.
How to Drink Coffee: Coffee Etiquette Explained
Master the proper way to hold a coffee cup, add sugar, use a spoon, and enjoy coffee without breaking etiquette rules.
What’s Inside a Coffee Bean? Key Chemical Components Explained
A roasted coffee bean contains fat, sugar, caffeine, tannins, minerals, and fiber. Here’s the exact breakdown and how each affects flavor.
Can Coffee Treat Dry Eye Syndrome? Japanese Study Says Yes
A Tokyo University study found caffeine pills increased tear production in dry eye patients. Results depended on caffeine metabolism and genetic factors.
Swiss Study Finds Coffee May Lower Blood Pressure
Regular coffee drinking may help reduce blood pressure, especially in non-smokers, according to Swiss research involving 16,000 people.
How Coffee Lowers Your Risk of Skin Cancer
Drinking 3+ cups of caffeinated coffee daily may reduce your risk of basal cell carcinoma by up to 21% in women and 10% in men, per Harvard research.
When to Exercise After Coffee: The 40-Minute Rule
Wait 40 minutes after drinking coffee before exercising. That’s when caffeine fully kicks in to boost focus and performance without upsetting your stomach.
How Many Cups of Coffee Should You Drink Daily?
Find out how many cups of coffee offer health benefits—and risks—based on research, with recommended daily caffeine limits.
Coffee Drinking Linked to Lower Mortality in Older Adults
A U.S. study of 400,000 people found older adults who drank 2+ cups of coffee daily had lower death rates, once lifestyle factors were adjusted.
Why You Should Avoid Drinking Too Much Instant 3-in-1 Coffee
Three-in-one instant coffee is high in sugar and fat, low in nutrients, and may hinder weight loss. Learn why it’s best consumed sparingly.
Why Night Owls Don’t Feel Caffeine’s Sleep Disruption
Research shows caffeine interferes with sleep mainly in early-rising 'lark' types, not night owls. Here’s what your chronotype means for coffee timing.
Can Coffee Trigger Rheumatoid Arthritis?
Research suggests heavy coffee intake may raise rheumatoid arthritis risk. Findings show over three cups daily linked to higher incidence.
Drinking 4 Cups of Coffee Daily May Cut Diabetes Risk by Half
Research shows daily intake of around 4 cups of coffee may reduce diabetes risk by 50% by suppressing harmful protein changes.
German Study Finds No Link Between Coffee and Chronic Disease
A decade-long German study of over 42,000 adults found no increased risk of chronic disease among regular coffee drinkers, including heart disease and cancer.
Does Coffee Really Cause High Blood Pressure?
A 33-year U.S. study of over 170,000 people finds no strong link between coffee drinking and increased hypertension risk.
How Caffeine May Help Slow Alzheimer’s Progression
Research shows high-dose caffeine intake reduced Alzheimer’s-like symptoms in aged mice, including memory and navigation improvements.
How Coffee Grounds Remove Toxic Sewer Odors
Coffee grounds absorb hydrogen sulfide, the gas behind foul sewer smells. Research shows they work even better than activated carbon in neutralizing the odor.
How Breastfeeding Moms' Caffeine Intake Affects Babies
Caffeine can build up in breastfed infants, causing wakefulness and irritability. Here’s what research says about safe limits during nursing.
Hamburgers and Coffee Together Double Health Risks
Eating fast food like burgers with coffee spikes blood sugar more than either alone—up to diabetic levels, a Canadian study finds.
How Many Cups of Coffee Should Office Workers Drink Daily?
Health experts recommend office workers limit coffee to 2–3 cups per day. Learn the risks of drinking more and who should be cautious.